Correlation of sectored servo position information

Details Correlation of sectored servo position information Correlation of sectored servo position information

1989-09-29

1992-05-26

Psitos, Aristotelis

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 4428, 360 7705, 360 7804, 360 7814, G11B 2108, G11B 2110

Patent

active

051174081

ABSTRACT:
Transducer position is determined relative to a disk in a data storage system. Track identification information is read from a disk in the data storage system to provide a coarse position signal identifying a track that the transducer is positioned over. Position error samples are read from a disk in the data storage system to provide a fine position signal representing transducer position error within a track that the transducer is positioned over. Then, the coarse position signal and the fine position signal are correlated so they correspond to the same track on the disk.

REFERENCES:
patent: 4297734 (1981-10-01), Laishley et al.
patent: 4414589 (1983-11-01), Oliver et al.
patent: 4590526 (1986-05-01), Laatt et al.
patent: 4669004 (1987-05-01), Moon et al.
patent: 4679103 (1987-07-01), Workman
patent: 4879612 (1989-11-01), Freeze et al.
Head Positioning in a Large Disk Drive, Hewlett-Packard Journal Jan., 1984 by R. Frank Bell, Eric W. Johnson, R. Keith Whitaker and Roger V. Wilcox.

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